134231220402 has 16 divisors (see below), whose sum is σ = 268473136800. Its totient is φ = 44741957472.

The previous prime is 134231220401. The next prime is 134231220407. The reversal of 134231220402 is 204022132431.

It is a happy number.

It is a super-2 number, since 2×134231220402² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (134231220401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 277648 + ... + 587835.

It is an arithmetic number, because the mean of its divisors is an integer number (16779571050).

Almost surely, 2^134231220402 is an apocalyptic number.

134231220402 is an abundant number, since it is smaller than the sum of its proper divisors (134241916398).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

134231220402 is a wasteful number, since it uses less digits than its factorization.

134231220402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 891337.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 134231220402 its reverse (204022132431), we get a palindrome (338253352833).

The spelling of 134231220402 in words is "one hundred thirty-four billion, two hundred thirty-one million, two hundred twenty thousand, four hundred two".